Jeong, Hyung Hwa Jeong, Woo Shik Choi, Jong Woo Jeong, Seung Eun Nam, Soon Yuhl Choi, Seung Ho Lee, Yoon Sei Kim, Hyeun A. Kim, Young Jun 2024-01-19T23:01:01Z 2024-01-19T23:01:01Z 2021-09-03 2018-05 1010-5182 https://pubs.kist.re.kr/handle/201004/121441 Background: A decreased flap volume can be an obstacle to proper phonation and swallowing. In this study we verified the proportion of volume decrease using 3D reconstructed images and identified the contributors to flap volume loss. Methods: We retrospectively analyzed all patients who underwent radical excision of tongue cancer and reconstructive surgery in our institution from January 2003 to October 2016. Segmentation of the DICOM images, 3D rendering of the neotongue flap, and analysis of the reconstructed images were performed using SPlanner V1 (R) software. Results: The first postoperative imaging work-up was performed within an average of 22 days (T1). The last follow-up images were taken at an average of 6.25 months (T2). The mean flap volume at T2 was reduced to 82.99 per cent compared with T1, and flap height was reduced to 91.85 per cent, giving mean volume and height decreases of 17.01 per cent and 8.15 per cent, respectively. Neither the volume/height difference between T1 and T2 nor the flap volume/height discrepancy compared with the preoperative tongue affected speech or feeding function. The difference between the flap and preoperative tongue volumes was significantly related to the presence of complications (p = 0.0153). Initial flap volume was significantly related to the flap volume reduction (p = 0.0159). Conclusions: The mean flap volume reduction is the only factor significantly related to initial flap volume. Our realistic 3D reconstructed image and novel software enables us to more precisely predict the flap volume of the postoperative state and preoperatively evaluate the required flap size for covering defects. (C) 2018 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved. English CHURCHILL LIVINGSTONE FUNCTIONAL OUTCOMES TOTAL GLOSSECTOMY RADIOTHERAPY 3D computer simulation analysis of the flap volume change in total tongue reconstruction flaps Article 10.1016/j.jcms.2018.02.013 1 JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY, v.46, no.5, pp.844 - 850 JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY 46 5 844 850 scie scopus 000430653400015 2-s2.0-85044306471 Dentistry, Oral Surgery & Medicine Surgery Dentistry, Oral Surgery & Medicine Surgery Article FUNCTIONAL OUTCOMES TOTAL GLOSSECTOMY RADIOTHERAPY Tongue neoplasms Tongue Surgical flaps Reconstructive surgical procedures